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Pavel [41]
3 years ago
14

Helppppppppppppppppppppppp

Mathematics
2 answers:
Alisiya [41]3 years ago
7 0

Answer:

50 degrees

Step-by-step explanation:

rosijanka [135]3 years ago
5 0

Answer:

50°

Step-by-step explanation:

∠EAD is a straight angle, meaning the angles that it's made up of add to 180°.

∠DAC+∠CAB+∠BAC=180

We know the values of ∠DAC and ∠CAB, so

25+105+x=180

130+x=180

x=180-130

x=50

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5 0
3 years ago
Solve Fast Please!!!!!!!!!!!!!! ok thanks, Bye (2x−5)^2−.5x<(2x−1)(2x+1)−15
Andrews [41]

Keep these rules in mind:

  1. (a + b)² = a² + 2ab + b²
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Firstly, solve the exponent and multiplication:

4x^2-20x+25-0.5x

Next, combine like terms:

4x^2-20.5x+25

Next, subtract 4x² on both sides:

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Next, subtract 25 on both sides:

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Lastly, divide both sides by -20.5. And since you are dividing by a <u>negative</u>, flip the inequality sign:

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tatiyna

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3π=3×3.14 =9.42

7π=7×3.14=21.98

Step-by-step explanation:

so the distance around window , in feet be

3π=3×3.14=9.42

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